Satoshi Iwabuchi defeated Dong Hyun Kim 6-4 6-4 in the Japan F6 qualifying round on carpet. Satoshi Iwabuchi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-12 | Japan F6 | R16 | clay | Satoshi Iwabuchi | 6-2 7-6(7) |
| 2001-07-30 | Chinese Taipei F1 | QF | hard | Dong Hyun Kim | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.